If you are a person who is (physically) moving a lot of data around, you have only a few options: USB stick, notebook or USB HDD. A notebook is quite expensive, big and heavy and USB sticks might not provide enough capacity for you.
With the Thermaltake Muse 3.5" external HDD enclosure you can put your old IDE harddisks back at use. It supports fast USB2.0 transfers with speeds of up to 480 Mbps.